Problems from The 2020 ICPC Vietnam National Contest

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Astrological Sign0.003601344115586%2.5Easyen
Battle of Hogwarts0.0673324819579%5.4Mediumen
Cable Car0.00282945154%7.9Harden
Dividing Kingdom0.3416241017271%5.8Harden
Easy Arithmetic0.081656945154%7.7Harden
Fluffy Cat0.011432362056%7.9Harden
Greatest Pair0.4714341138071%5.8Harden
Highway to Mount Fansipan0.0334728422780%4.1Mediumen
Infinite 2D Array0.0445619714574%5.5Harden
Just Enough Water0.0042715413084%4.4Mediumen
Kingdom of Cats0.0047422717477%5.1Mediumen
Looping Around0.471858694159%7.5Harden
Malfunctioning Robot0.007446134875%3.7Mediumen